This has been an unusually productive time in recreational mathematics.
1. It appears that the 40th Mersenne Prime has been discovered:
http://www.mersenne.org/prime.htm
2. And we now know that there are no magic knight's tours of a chessboard, a
150-year old problem:
http://mathworld.wolfram.com/news/20...06/magictours/
3. And the world's oldest math problem,*the Loculus of Archimedes*, has been solved:
http://www.maa.org/editorial/mathgam..._11_17_03.html